Spectroscopy of pionic atoms in ${}^{122}\text{S}\mathbf{n}(\text{d},{}^3\text{H}\mathbf{e})$ reaction and angular dependence of the formation cross sections

T. Nishi, K. Itahashi, G. P. A. Berg +36

We observed the atomic $1s$ and $2p$ states of ${\pi }^{-}$ bound to ${}^{121}\mathrm{Sn}$ nuclei as distinct peak structures in the missing mass spectra of the ${}^{122}{\rm Sn}(d,{}^3{\rm…